FR74801E
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Traveling wave electronic devices
Assignee: International Standard Electric Corp
•
Filing: 1956-01-27
•
Granted: 1961-03-03
•
Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Harold Baker Wood
- 👤 Denis Edwin Brown
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 09:03
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/36; H01J23/40; H01J23/48; H01J23/52; H01J23/02; H01J23/08; H01J23/083; H01J23/16; H01J23/24; H01J23/26; H01J23/30; H01J25/00; H01J25/34; H01J25/36; H01J25/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.